export function setCookie(c_name,value,expire) {
    var date=new Date()
    date.setSeconds(date.getSeconds()+expire)
    document.cookie=c_name+ "="+escape(value)+"; expires="+date.toGMTString()
    //console.log(document.cookie)
   }
    
   export function getCookie(c_name){
    if (document.cookie.length>0){
     let c_start=document.cookie.indexOf(c_name + "=")
     if (c_start!=-1){ 
      c_start=c_start + c_name.length+1 
      let c_end=document.cookie.indexOf(";",c_start)
      if (c_end==-1) c_end=document.cookie.length
       return unescape(document.cookie.substring(c_start,c_end))
      } 
     }
    return ""
   }
    
   export function delCookie(c_name){
    setCookie(c_name, "", -1)
   }